Mock 3a Shoulder and (3b hip)

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Muscles of rotator cuff, origin & insertion
Check Neck and Shoulder station

Identify acromion, coracoid process
• Acromion: 2
• Coracoid process: 3

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What nerve related to spiral groove?

Radial nerve

Clinical picture of radial nerve injury at the spiral groove?

• Paralysis of wrist extensors → wrist drop
• Paralysis of finger extensors → finger drop
• Loss of sensation in the 1st web space

Why patient with radial nerve injury will have weak power grip?

Radial nerve supply extensor of wrist and this gives synergistic effect for the power grip.

Identify medial condyle?
Structure 7

Nerve related to medial condyle?
Ulnar nerve

Nerve injury (sensory and motor)?
Motor
• Claw hand with ulnar paradox (ulnar paradox).

Sensory
• Loss of sensation of the medial ½ of the palmar and dorsal aspects of hand and fingers.

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Hip flexors, insertion?

• Iliacus
• Psoas major
• Rectus femoris
All muscle inserted in lesser trochanter of femur

Nerve passing medial to Lesser trochanter?
Lateral cutaneous nerve of thigh (lateral femoral cutaneous nerve) (L2, 3)
Condition caused by its compression
Meralgia paresthetica
Muscles attached to ASIS?

Sartorius (origin)
Tensor fasciae latae (origin)

Identify pubic tubercle.
Number 24
Origin and insertion of gluteus medius
Origin

Ilium between posterior and anterior

Insertion

Greater trochanter of femur
gluteal lines

What is its function during walking?

Support the body when walking
Prevent the pelvis from drooping to the opposite side

What are the main flexors of the hip?

Iliacus
Psoas major (main one)
Rectus Femoris

Where is it inserted?
Lesser trochanter of femur
What is the origin and Insertion of quadratus femoris?
Origin

Ischial tuberosity

Insertion

Intertrochanteric crest of femur